I like how you went through each paragraph he made point by point. Good job.

E.P. Grondine wrote:

uniface wrote:5500-5000 B.C.Earliest of the inferred trans-Atlantic crossings, achieved by the Maritime Archaic Red-Paint Cultures of western Scandinavia and northwest Europe. The archeological remains of these people, carbon-dated in Norway to 5500 B.C., are very similar to those of the Maritime Archaic Red-Paint people of Labrador and New England, carbon-dated to 5000 B.C. On both sides of the North Atlantic these peoples operated sea-going wooden vessels and used similar fishing devices for hunting swordfish and marine mammals.

The dates that were given before for the appearance of Canadian Martime Archaic were 8,350 BCE.

This is interesting. Do we know if red paint cultures were in Siberia and northwestern North America, or were they just in Western Europe and NE North America, suggesting a possible connection?

uniface wrote:2000 B.C.Sumerian political power wanes and is extinguished in Mesopotamia, under the assault of Semitic invaders. In South America Sumerian colonists appear, perhaps as refugees from their Mediterranean homeland, to establish animal husbandry and plant cultivation among the native Andean peoples of the Altiplano.

WRONG.Irrigation agriculture appears at Caral much earlier than 2,000 BCE, using local crops.

Right. Interesting coincidence though how these major civilizations started on both halves of the globe about this time - 4000-3000 BC, even though they were separated by tens of thousands of miles, c.10,000+ years' time difference, and a massive ocean.

Don't you think?

2000 B.C. on The Old Copper Culture of north Michigan and Lake Superior region, carbon-dated to this era, with some 5000 copper mines in operation on and near the Copper Peninsula. Millions of pounds of copper extracted and apparently exported abroad, as inferred by researches of mining engineers.

WRONG.If you travel to the museum at Green Bay, they had Canadian Maritime Archaic tools in stone beside their adaptions into copper.The dates were around 4,000 BCE.

The earliest mines were on the Canadian side near Saulte San Marie.

It's also interesting how both sides of the globe were starting to use copper (Chalcolithic period) in the same general millenial period, even though separated by a massive ocean, thousands of miles, and a common origin of c. 10,000 years before. It's like raising the question of whether this happened totally independently and rather simultaneously.

Red Paint People are found throughout the arctic, from central Siberia, across Scandinavia and into North America

Lost Cities of North & Central AmericaBy David Hatcher Childress

So Red Paint people could have migrated from Siberia to America, not necessarily from Europe to America. That still leaves the other two questions I asked:

Sumerian political power wanes and is extinguished in Mesopotamia, under the assault of Semitic invaders. In South America Sumerian colonists appear, perhaps as refugees from their Mediterranean homeland, to establish animal husbandry and plant cultivation among the native Andean peoples of the Altiplano.

Irrigation agriculture appears at Caral much earlier than 2,000 BCE, using local crops.

Interesting coincidence though how these major civilizations started on both halves of the globe about this time - 4000-3000 BC, even though they were separated by tens of thousands of miles, c.10,000+ years' time difference, and a massive ocean. Don't you think?

2000 B.C. on The Old Copper Culture of north Michigan and Lake Superior region, carbon-dated to this era, with some 5000 copper mines in operation on and near the Copper Peninsula.

If you travel to the museum at Green Bay, they had Canadian Maritime Archaic tools in stone beside their adaptions into copper.The dates were around 4,000 BCE. The earliest mines were on the Canadian side near Saulte San Marie.

Wikipedia says that the earliest evidence of the Chalcolithic period was from Serbia in 5000 BC, and that this happened about 1000 years later in the Americas like you said:

The term is also applied to American civilizations that already used copper and copper alloys thousands of years before the European migration. Besides cultures in the Andes and Mesoamerica, the Old Copper Complex, centered in the Upper Great Lakes region – present-day Michigan and Wisconsin in the United States – mined and fabricated copper as tools, weapons, and personal ornaments.[17] The evidence of smelting or alloying that has been found is subject to some dispute and a common assumption by archaeologists is that objects were cold-worked into shape. Artifacts from some of these sites have been dated from 4000 to 1000 BCE,... Furthermore, some archaeologists find artifactual and structural evidence of casting by Hopewellian and Mississippian peoples to be demonstrated in the archaeological record.https://en.wikipedia.org/wiki/Chalcolithic

It's also interesting how both sides of the globe were starting to use copper (Chalcolithic period) in the same general millenial period, even though separated by a massive ocean, thousands of miles, and a common origin of c. 10,000 years before. It's like raising the question of whether this happened totally independently and rather simultaneously.